<div class="panel panel-primary">
  <div class="panel-heading">基础的插值语法</div>
  <div class="panel-body">
    <h3>这里还happykala的{{title}}</h3>
    <h3>1+1 = {{1+1}}</h3>
    <h3>函数返回值{{getVal()}}</h3>
  </div>
</div>